SQL query beginners Interview questions when deleting Null rows and columns #sqlinterviewquestions

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SQL query beginners Interview questions when deleting Null rows and columns

In a SQL interview, beginners may be asked about deleting NULL rows and columns. Candidates should understand how to use the DELETE statement with a WHERE clause to remove rows where all values are NULL. For columns, awareness of potential data loss and the impact on the schema is crucial. The focus is on assessing candidates' comprehension of basic SQL operations and their ability to handle NULL values effectively during data manipulation.

SQL interview questions cover a range of levels, from basic to experienced. Topics include NULL handling, joins, aggregations, and schema changes. Freshers tackle fundamentals, while experienced candidates delve into optimization and complex queries. Preparation involves mastering common syntax, query structures, and database concepts.

300+ SQL job seekers interview questions and answers

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